Delay in recognizing bluetooth keyboard & mouse on login screen in High Sierra

[voodoomaniac]

I have fresh installed High Sierra (17A365) with all updates. At the login screen I am experiencing about a 3-5 second delay before the bluetooth keyboard & mouse are recognized and I'm able to select user to login and enter password. The issue is reproducible since first boot after clear install.

I have tried to reset PRAM and SMC - this helped just for few reboots. After the issue occurs again.

Video with issue:

Does someone have such issue?

 

[tarsins]

I see that in Sierra with Magic Keyboard 2 with numeric pad and Magic Trackpad 2 (don't use a mouse). The trackpad seems to come "online" before the keyboard. I assumed it was normal because after booting the OS needs to set up the Bluetooth stacks and stuff. It's not really bothered me as I rarely reboot my iMac anyway.

 

[gian8989]

I can also confirm small delay in sierra at login with magic keyboard with numeric pad. No delay on logitech mouse.